French: Viréo de Bell German: Braunaugenvireo Spanish: Vireo de Bell
“short distance below Black Snake Hills” = near St Joseph, Missouri, USA
Subspecies and Distribution
V. b. pusillus
Coues, 1866 – Least Vireo – S California S to extreme NW Mexico (NW Baja California); migrates to S Baja California.
V. b. arizonae
Ridgway, 1903 – SW USA (S Nevada, SW Utah, NW Arizona and SW New Mexico) S to NW Mexico (NE Baja California and Sonora); migrates to W Mexico (C & S Sonora S to Jalisco, rarely to C Michoacán).
V. b. medius
Oberholser, 1903 – SC USA (S New Mexico, SW Texas) S to NC Mexico (S to San Luis Potosí, probably SW Tamaulipas, possibly SW Durango); migrates to W Mexico.
V. b. bellii
Audubon, 1844 – Bell's Vireo – C & S USA (from North Dakota E to Indiana, S to C Texas); migrates to Mexico, Guatemala, El Salvador, Honduras and (rarely) extreme NW Nicaragua.
11·5–12·5 cm; 734–9·8 g. Nominate race has crown and nape dull greyish-brown, becoming more greenish on back and rump; eyering and area above... read more
Primary song a characteristic loud, unmusical sequence of c. 10 spluttery notes, lasting c. 1... read more
Dense low scrub, especially riparian bushland, young second-growth forest, coastal chaparral and... read more
Food and feeding
Food mostly arthropods, especially large insects. Prey during breeding includes caterpillars of Lepidoptera, bees and wasps (Hymenoptera),... read more
Season mid-Mar to Jul, from May in N of range; usually only one brood in Kansas, usually two in California and Arizona. Monogamous;... read more
Migratory; one small area of overlap of summer and winter ranges in NW Mexico (Sonora). Nocturnal... read more
Status and conservation
Not globally threatened. Currently considered Near-threatened. Locally fairly common. Populations over much of range in decline, with 2·7% annual decrease, or 64% in total... read more
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